Functionalized adamantane: Building blocks for nanostructure self-assembly

Garcia, Joelson Cott; Justo, J. F.; Machado, W.V.M.; Assali, L. V. C.

doi:10.1103/physrevb.80.125421

Cited by 46 publications

(42 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These properties, such as shape dependent optical absorption, 14 ultraviolet photoluminescence, 15 or negative electron affinity ͑NEA͒, 17 reveal the great prospects that diamondoids bear for technological use 19 and foster the growing interest in diamondoids as building blocks for nanotechnology. 26,27 Most notably, thiolated higher diamondoids have been prepared. 20 A variety of diamondoids with different functional groups are now available [21][22][23][24] and further ways to modify diamondoid properties have recently been realized 25 or proposed.…”

Section: Introductionmentioning

confidence: 99%

The influence of a single thiol group on the electronic and optical properties of the smallest diamondoid adamantane

Landt

Staiger

Wolter

et al. 2010

The Journal of Chemical Physics

View full text Add to dashboard Cite

At the nanoscale, the surface becomes pivotal for the properties of semiconductors due to an increased surface-to-bulk ratio. Surface functionalization is a means to include semiconductor nanocrystals into devices. In this comprehensive experimental study we determine in detail the effect of a single thiol functional group on the electronic and optical properties of the hydrogen-passivated nanodiamond adamantane. We find that the optical properties of the diamondoid are strongly affected due to a drastic change in the occupied states. Compared to adamantane, the optical gap in adamantane-1-thiol is lowered by approximately 0.6 eV and UV luminescence is quenched. The lowest unoccupied states remain delocalized at the cluster surface leaving the diamondoid's negative electron affinity intact.

show abstract

Section: Introductionmentioning

confidence: 99%

The influence of a single thiol group on the electronic and optical properties of the smallest diamondoid adamantane

Landt

Staiger

Wolter

et al. 2010

The Journal of Chemical Physics

View full text Add to dashboard Cite

show abstract

“…Size-and shape-selected neutral diamondoids in the gas phase are optimal model systems for theory, especially for the study of quantum confinement effects. [20][21][22][23][24][25] In particular, doped or surface-modified diamondoids [2][3][4][5][6] as well as diamondoid dimers or trimers are extremely attractive as nanoscale building blocks for applications. Another interesting feature is the photoluminescence of diamondoids.…”

Section: Introductionmentioning

confidence: 99%

Laser-induced fluorescence of free diamondoid molecules

Richter

Röhr

Zimmermann

et al. 2015

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

aWe observe the fluorescence of pristine diamondoids in the gas phase, excited using narrow band ultraviolet laser light. The emission spectra show well-defined features, which can be attributed to transitions from the excited electronic state into different vibrational modes of the electronic ground state. We assign the normal modes responsible for the vibrational bands, and determine the geometry of the excited states. Calculations indicate that for large diamondoids, the spectral bands do not result from progressions of single modes, but rather from combination bands composed of a large number of Dv = 1 transitions. The vibrational modes determining the spectral envelope can mainly be assigned to wagging and twisting modes of the surface atoms. We conclude that our theoretical approach accurately describes the photophysics in diamondoids and possibly other hydrocarbons in general.

show abstract

“…In addition, the KIE values for the reaction of 1 with traditional electrophiles and oxidants are very characteristic and also involve many examples [36,40]. Concerning practical aspects the biotransformation of 1 is an appropriate model reaction due its availability from Nature [55] or synthetically [56] and wide use of adamantane derivatives as pharmaceuticals [57][58][59][60], polymeric [61], and electronic [62][63][64] materials. We, thus, selected 1 as a model compound for oxidation by surface and submerged cultures of basidiomycetes.…”

Section: Introductionmentioning

confidence: 99%